Electric grinder



FIG. 1 is a front, left, top perspective view of an electric grinder showing our new design;

FIG. 2 is a rear, left, top perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken lines in the drawings illustrate the portions of the electric grinder which form no part of the claimed design. 

CLAIM The ornamental design for an electric grinder, as shown and described. 